Due to forum rules, I cannot post a link, but if you go to Youtube and do a search for "Beefeaters tower of london" (cut 'n' paste it) and click on what should be the top link called "Yeoman Warden At Tower Of London, Part 1 Of Four" there is a highly recommended, highly irreverent Beefeater (traditionally a Guard of the Queen) giving tourists a guided tour of the Tower of London.

Watch it!

I'm more commonly known as Tosh (it's a nick name, but everyone I know in real life calls me it); just in case there's any confusion; I tend to use Tosh or Ken interchangeably and it confuses some; including me.